remoting: Cleanup class/struct fwd declarations

remoting/host/desktop_process.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_HOST_DESKTOP_PROCESS_H_
 #define REMOTING_HOST_DESKTOP_PROCESS_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "ipc/ipc_listener.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 #include "remoting/host/desktop_session_agent.h"
 
 namespace IPC {
 class ChannelProxy;
 }  // namespace IPC
 
 namespace remoting {
 
 class AutoThreadTaskRunner;
-class DesktopEnvironment;
 class DesktopEnvironmentFactory;
 class DesktopSessionAgent;
 
 class DesktopProcess : public DesktopSessionAgent::Delegate,
                        public IPC::Listener,
                        public base::SupportsWeakPtr<DesktopProcess> {
  public:
   DesktopProcess(scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
                  scoped_refptr<AutoThreadTaskRunner> input_task_runner,
                  scoped_refptr<AutoThreadTaskRunner> io_task_runner,
@@ skipping 50 matching lines @@
   // Provides screen/audio capturing and input injection services for
   // the network process.
   scoped_refptr<DesktopSessionAgent> desktop_agent_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopProcess);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DESKTOP_PROCESS_H_